linux-stable.git/drivers/soundwire, branch linux-6.14.y

soundwire: bus: Fix race on the creation of the IRQ domain

2025-05-29T09:13:55+00:00

[ Upstream commit fd15594ba7d559d9da741504c322b9f57c4981e5 ]

The SoundWire IRQ domain needs to be created before any slaves are added
to the bus, such that the domain is always available when needed. Move
the call to sdw_irq_create() before the calls to sdw_acpi_find_slaves()
and sdw_of_find_slaves().

Fixes: 12a95123bfe1 ("soundwire: bus: Allow SoundWire peripherals to register IRQ handlers")
Signed-off-by: Charles Keepax 
Link: https://lore.kernel.org/r/20250409122239.1396489-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

soundwire: cadence_master: set frame shape and divider based on actual clk freq

2025-05-29T09:13:24+00:00

[ Upstream commit e738d77f78b3ac085dfb51be414e93464abba7ec ]

Frame shape and curr_dr_freq could be updated by sdw_compute_bus_params().
Peripherals will set curr_dr_freq as their frequency. Managers
should do the same. Then update frame shape according to the actual
bus frequency.

Signed-off-by: Bard Liao 
Reviewed-by: Ranjani Sridharan 
Reviewed-by: Péter Ujfalusi 
Reviewed-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20250205074232.87537-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

soundwire: amd: change the soundwire wake enable/disable sequence

2025-05-29T09:13:24+00:00

[ Upstream commit dcc48a73eae7f791b1a6856ea1bcc4079282c88d ]

During runtime suspend scenario, SoundWire wake should be enabled and
during system level suspend scenario SoundWire wake should be disabled.

Implement the SoundWire wake enable/disable sequence as per design flow
for SoundWire poweroff mode.

Signed-off-by: Vijendar Mukunda 
Link: https://lore.kernel.org/r/20250207065841.4718-2-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

soundwire: take in count the bandwidth of a prepared stream

2025-04-10T12:44:30+00:00

[ Upstream commit 08ae0d61c3d79bb5d52ae30ad4fc12442e966a23 ]

When a stream's state is marked as prepared, it is ready for
playback/capture. Therefore, we need to include the stream's bandwidth
when we calculate the required bandwidth of a bus.

Fixes: 25befdf32aa40 ("soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only")
Signed-off-by: Bard Liao 
Link: https://github.com/thesofproject/linux/issues/5334
Reviewed-by: Richard Fitzgerald 
Reviewed-by: Ranjani Sridharan 
Link: https://lore.kernel.org/r/20250310073653.56476-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

soundwire: slave: fix an OF node reference leak in soundwire slave device

2025-04-10T12:44:28+00:00

[ Upstream commit aac2f8363f773ae1f65aab140e06e2084ac6b787 ]

When initializing a soundwire slave device, an OF node is stored to the
device with refcount incremented. However, the refcount is not
decremented in .release(), thus call of_node_put() in
sdw_slave_release().

Fixes: a2e484585ad3 ("soundwire: core: add device tree support for slave devices")
Signed-off-by: Joe Hattori 
Reviewed-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20241205034844.2784964-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

Merge tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2025-01-29T22:38:19+00:00

Pull soundwire updates from Vinod Koul:

 - SoundWire multi lane support to use multiple lanes if supported

 - Stream handling of DEPREPARED state

 - AMD wake register programming for power off mode

* tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: amd: clear wake enable register for power off mode
  soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only
  SoundWire: pass stream to compute_params()
  soundwire: generic_bandwidth_allocation: add lane in sdw_group_params
  soundwire: generic_bandwidth_allocation: select data lane
  soundwire: generic_bandwidth_allocation: check required freq accurately
  soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col
  Soundwire: generic_bandwidth_allocation: set frame shape on fly
  Soundwire: stream: program BUSCLOCK_SCALE
  Soundwire: add sdw_slave_get_scale_index helper
  soundwire: generic_bandwidth_allocation: skip DEPREPARED streams
  soundwire: stream: set DEPREPARED state earlier
  soundwire: add lane_used_bandwidth in struct sdw_bus
  soundwire: mipi_disco: read lane mapping properties from ACPI
  soundwire: add lane field in sdw_port_runtime
  soundwire: bus: Move irq mapping cleanup into devres

soundwire: amd: clear wake enable register for power off mode

2024-12-23T06:31:13+00:00

As per design for power off mode, clear the wake enable register during
resume sequence.

Signed-off-by: Vijendar Mukunda 
Link: https://lore.kernel.org/r/20241203092144.4096986-1-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul

soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only

2024-12-23T06:30:34+00:00

sdw_compute_group_params() should only count payload bandwidth of the
active streams which is in the ENABLED and DISABLED state in the bus.
And add the payload bandwidth of the stream that calls
sdw_compute_group_params() in sdw_prepare_stream().

Signed-off-by: Bard Liao 
Reviewed-by: Ranjani Sridharan 
Reviewed-by: Péter Ujfalusi 
Link: https://lore.kernel.org/r/20241218080155.102405-15-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

SoundWire: pass stream to compute_params()

2024-12-23T06:30:34+00:00

The stream parameter will be used in the follow up commit.
No function change.

Signed-off-by: Bard Liao 
Reviewed-by: Ranjani Sridharan 
Reviewed-by: Péter Ujfalusi 
Link: https://lore.kernel.org/r/20241218080155.102405-14-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: generic_bandwidth_allocation: add lane in sdw_group_params

2024-12-23T06:30:34+00:00

All active streams with the same parameters are grouped together and the
params are stored in the sdw_group struct. We compute the required
bandwidth for each group. However, each lane has individual bandwidth.
Therefore, we should separate different lanes in different params groups.
Add lane variable to separate params groups.

Signed-off-by: Bard Liao 
Reviewed-by: Ranjani Sridharan 
Link: https://lore.kernel.org/r/20241218080155.102405-13-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul